共 24 条
[2]
BREMNER JM, 1965, METHODS SOIL ANALY 2, P1216
[3]
CAPRIO JM, 1973, 42 MONT AGR EXP STN
[4]
COLE JOHN S., 1954, SOIL SCI SOC AMER PROC, V18, P247
[5]
DIXON WJ, 1970, BMD BIOMED COMPUT, P233
[8]
GIFFORD RO, 1967, T8 NEV AGR EXP STN R
[9]
GROSENBAUGH LR, 1967, PSW44 PAC SW FOR RAN